cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A276891 Number T(n,k) of ordered set partitions of [n] where k is minimal such that for each block b the smallest integer interval containing b has at most k elements; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 2
5 1
6 0
7 6
8 4
9 3
10 0
11 24
12 20
13 18
14 13
15 0
16 120
17 114
18 118
19 114
20 75
21 0
22 720
23 750
24 878
25 924
26 870
27 541
28 0
29 5040
30 5616
31 7224
32 8152
33 8760
34 7818
35 4683
36 0
37 40320
38 47304
39 65514
40 79682
41 90084
42 94560
43 81078
44 47293
45 0
46 362880
47 443400
48 652446
49 845874
50 998560
51 1135776
52 1148016
53 954474
54 545835

List of values

[1, 0, 1, 0, 2, 1, 0, 6, 4, 3, 0, 24, 20, 18, 13, 0, 120, 114, 118, 114, 75, 0, 720, 750, 878, 924, 870, 541, 0, 5040, 5616, 7224, 8152, 8760, 7818, 4683, 0, 40320, 47304, 65514, 79682, 90084, 94560, 81078, 47293, 0, 362880, 443400, 652446, 845874, 998560, 1135776, 1148016, 954474, 545835]